Dawuth Pathan

6 Questions 9 Answers 0 Followers

Questions related from Dawuth Pathan

How do I extract u, no and Rc using Resistance vs Back-gate voltage curve?

I am facing problem with fitting equation (4) mentioned in the following paper: http://scitation.aip.org/content/aip/journal/apl/94/6/10.1063/1.3077021 I am not able to calculate values of n...

09 September 2015 6,871 0 View

Why is electron current saturating when CVD graphene is doped with aluminium?

I am trying to fabricate back-gated CVD graphene devices using photolithography(ppr S1813). I have done aluminium deposition to dope graphene n-type and shift dirac point of p doped graphene. I...

08 August 2015 2,280 1 View

Does lift-off of graphene devices using S1813-LOR3B bilayer resist in PG remover affect elecronic properties of graphene?

I am using PG remover for lift-off purpose. I heat metal deposited sample in PG remover at 70C for carrying out lift-off process faster. Does is affect electronic properties of graphene?

06 June 2015 5,884 3 View

How to restore dirac point shift in graphene devices?

I have been working on exfoliated graphene FET devices. When I fabricate devices and characterize them, dirac point shifts to very high voltages e.g., 80V. I have tried chloroform cleaning after...

02 February 2015 903 10 View

How can one remove PPR s1813 resist residues from graphene surface?

I am working on fabrication of CVD graphene FET. I am using PPR S1813 photoresist for lithographic process. I want to know different methods by which PPR s1813 residues can be removed from...

02 February 2015 8,908 7 View

What are the drawbacks of nano imprint lithogrpahy?

Nano imprint lithography has a high throughput. This process also has the promize of repeatability and durability which consequently leads to low costs and ease of fabrication. Despite of such...

02 February 2015 1,841 4 View